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Punched Cards, Their Applications to Science and Industry

 

作者: ROBERT,   CASEY JAMES,  

 

期刊: Soil Science  (OVID Available online 1952)
卷期: Volume 74, issue 5  

页码: 406-406

 

ISSN:0038-075X

 

年代: 1952

 

出版商: OVID

 

数据来源: OVID

 

 

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